Function of the Law

“The Law is the Word in which God teaches and tells us what we are to do and not to do, as in the Ten Commandments. Now wherever human nature is alone, without the grace of God, the Law cannot be kept, because since Adam’s fall in paradise man is corrupt and has nothing but a wicked desire to sin and in his heart cannot be favorably disposed toward the Law, as we know by our own experience. For there is no one who would not rather have no Law at all, and everyone finds and feels within himself that while it is difficult to be pious and do good, it is easy to be wicked and to do evil. And this difficulty or this unwillingness to do what is good prevents us from keeping God's Law; for what is kept with dislike, difficulty, and unwillingness, rates before God as not having been kept at all. And so the Law of God convinces us by our experience that we are naturally wicked, disobedient, lovers of sin, and enemies of God's commandments.” Martin Luther

Numbers 15:31 Because he has despised the word of the Lord, and has broken His commandment, that person shall be completely cut off; his guilt shall be upon him.